Across
- 1. Waste gas released during the Krebs cycle
- 4. Waste product formed when oxygen accepts electrons and H⁺ ions.
- 5. The inner space of the mitochondria where the Krebs cycle occurs.
- 7. Electron carrier that transfers energy to the electron transport chain.
- 8. Main energy molecule produced during respiration.
- 11. Product of anaerobic respiration in muscle cells.
- 12. Type of respiration that happens without oxygen.
- 13. Cycle that produces CO₂, ATP, NADH, and FADH₂ in the mitochondria.
Down
- 2. Final electron acceptor in the electron transport chain.
- 3. Final stage where most ATP is made using electrons and oxygen.
- 5. Organelle where aerobic respiration occurs.
- 6. Another electron carrier formed during the Krebs cycle.
- 9. Product of glycolysis that enters the mitochondria.
- 10. First step of respiration that splits glucose into pyruvate.